[rramadass]

Your A4 summary page technique is ingenious. It forces one to focus on the absolute essentials gleaned while reading a book rather than fluff which is actually an art in "Note-taking". It is the same as "Precis Writing" but for a book.

In case you didn't already know, you might find the following useful;

1) SQ3R - https://en.wikipedia.org/wiki/SQ3R

2) Cornell Note-taking method - https://en.wikipedia.org/wiki/Cornell_Notes